Gas heating-stove.



Patented oef. |o ,1 |899.v

C. H. HOFFSTETTERf GAS HEATING STUVE.

(Appie-tin am .mue 1o, 1899.)

3 shuts-sheet 1 (No Model.)

INvENl-ur. CHARLES H. HGFFSTETTER ATTEET ATTY wt 16ml nul no. mum. wmlnovou. D, m

No. 634,498. l Patented Oc't. l0, i899.

C. H. HOF-FSTETTER.A

GAS HEATING STUVE.

(Appumidn and aunq 1o, 1899.) A (No Nadal.) 3 Sheets-Sheet 2.

lNvNr Diff. CHARLES H HoF-FSTETTR n1: Norms mins co.. Puomnwnu., wmmrumx. D. :L

l' l l 1 No. 634,498. l Patented um.A lo, 1899.'

C. H. HFFSTETTER. GAS HEATING ST'OVE.

i (Application :und June 1o, 1899.)

(No Modal.) 3 Sheets-Sheet 3Q ATTE 51- INVENTD WWW CHARLEQ H Hoffi-STETTER` AITY M nos mais cov. momungm funnel-on, n. c.

Y avoid their diffusion in the atmosphere of thel UNITED STATES APATENT OFFICE.

CHARLES H. HOFFSTETTER, OF ERIE, PENNSYLVANIA.

GAS HEATING-STOVE.

SPECIFICATION forming part of Letters Patent'Na 634,498, dated October 10, 41899. Application tiled rTnnerlO. 18.99. Serial No. 720,069. (No model.)`

Be it known that I, CHARLES H. HoEEsTEr- TER, a citizen of the United States, residing at Erie, in the-county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Gas Heating Stoves;

and I do declare that thefollowng is a full,

clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the saine.

My invention relates to gas heating-'stoves and the invention consists in a stove constructed and having the features substantially as shown and described and particularly pointed out in the claims.

In the accompanying drawings, Figure lis a vertical central sectional elevation on aline corresponding to l 1, Fig. 2. tical sectional elevationof the stove at right angles to Fig. 1 and on line 2 2, Figi, eztcept that the burner is shown infull lines and the supply-pipe is shown in section. Fig. 3 is a horizontal section of the top of the stove looking downenv line 3.3, Fig. 2.r Figg et is a horizontal section looking down on line 4; 4, Fig. 2.

The stove thus shown is designed more particularly for burning natural gas, iny the use of which good health demands that the products of combustion should be carried 0E directly from the stove to the chimney, so as to room and the consequentcorruption of the air and its inevitableconsequences upon the health of the occupants. 'Y

Heretofore as a very vgeneral thing the appliances for utilizing natural gas for domestic heating have been exceedinglycrude,and however much they varied in character they al,

most invariably were without any provision for ventilation or carrying away the deleterions gases that unavoidably attend the use of burners, either by reason of imperfect com-A bustion or from the productsof combustion themselves. Some eorts have been from time to timeinade to remedy this acknowledged objection; but so far as I am awareV the best ,or most satisfactoryY results have not been attained by any of them. I have sought, therefore, to construct a stove for this special Fig. 2 is a ver-- y chamber.

use which has` two Vdistinct advantages in view--viz., the maximum elimination of the lheat generated, so that there shall be no waste on this account, and the separation of 'combustion and its products from the atmosphere which passes into the room and the dischargelof said products into the iiue and chimney provided to carry them away.

To these several ends l have constructed a :stove substantially as shown, wherein utility is combined with symmetry and attractiveness in design or style. In this construction A represents the .base of the stove, and B the body, in which is the heating-chamber proper,

`having the burner C openly exposed therein at its bottom. The bottom of the stove is perforated or has openings for the entrance.

of air to supply the burner within the chamber, and on the top of said chamber and body B is the radiating and reilecting plate or part vD,'which rests at its ends and front on the Walls of the body B and Aat its rear on the inner Wall E of the combustion and heating This plate D is constrnctedwith iiues 2 at its ends, and these tlucs extend up iiush with the top plate proper, F, of the body of the stove, and the said'parts are constructed to make a close union and ro-avoid leakage, the topF having openings to match the dues 2. This construction leaves the body of plate D on a plane sufficiently below the top F to -form an air-space between them, and air is admittedr to this space and thence upward into the radiatingand conveying dues G and H through 'therample passage 3 at the rear of the burner-chamber between walls B and E and at the front through the entrance 4 beneath the overhanging front of the top plate F, the airspace as to plate D being between its two end nues 2.

The plate or top F of the body of the stove has flanged holes to accommodate the hot-air iiues G and H and the combustion or draft iiues K, which are arranged over the draft iiues or passages 2. Flues G and G are oi' the saine size as here shown, while flue H, intermediate of these, is of considerably larger capacity, and all the said iiues are of the same length and surmounted by a plate L common to all of them and havingv'an opening for each to continue its passage thence onward, the hot or heated air for the room issuing into the room at the top through the open-work crown-plate M, while the products of combustion pass on to the outlet 6 and to the chimney, Fig. l. 'Complication of the lues and intermixture of their contents in the extreme top of the stove, where all the pipesor ilues G, Il, and K discharge, is prevented by a division-wall N, which at its ends is shown in plan, Fig. 3, as splitting the openings 7 in plate L and skirfting at its .rear and longer portion the rear of air-openings 8 and i) from flues G and Il, so as to provide a draftpassage across the rear and top of the said top for the products of combustion to the outlet 6.

By referring to Fig. 2 i't will be seen that plate L is built. out at Z to cover half the space occupied by the pipes K, which, however,

' leaves ample room for the exit of the products v for the said fire-chamber.

of combustion and by clicking the same back at t-his point promotes radiation of heat therefrom. A somewhat corresponding coutraction of the draft-passage occurs at the bottom of draftpipes K for a like purpose, so that as a result of the construction as a whole I am enabled to extract practically all the heat obtained from the burner and without occasion to inhale'any of the odor orpoisonous gases arising therefrom. Neither is there any danger of explosion from accidental iiow'of gas with a stove of this kind, because there is draft enough to carry the gas off as fast as it flows.

Amongthe features of importance and novelty in this stove I mention- First. The back flue or passage open at the bottom and extending Aupward and directly over the lireehamber', covering the entire top of the fire-chamber and forming a back wall .This back iiue eX- tends clear over the top of the lire-chamber, forming a sort of roof, and is again opened at the front of the heater directly over the door, thereby taking in a draft of air from the front of the stove as well as the back.

Second. The method of conducting the waste products from the fire-chamber upward through the end flue-pipes and out into the chamber on top of the flue-pipes, and thence out through the pipe-collar and into the chimney. The flue in the top of this register or chamber or radiator I consider one -of the most valuable points in the stove, in-

heat which is deposited in the room pure air, which is taken from the room, passes through the stove in the various flues constructed for this purpose, but passes upward and out through the radiator on the top of the uepipes into the room, altogether as pure when it returns to the room as when it entered the heater.

rIhe draft-fines7 herein referred to mean the combustion-lines, in contradistinction to -the fresh-air flues, while`-` the air flues or passages have reference to the heated air for the room.

Vhat I claim as new, and desire to secure by Letters Patent, isv l. The body of the stove, la top plate thereon and a heat-radiating plate beneath said top plate, said plates constructed to form a hot-air chamber between them, draft-dues from the combustion-chamber thrcu gh said plates exterior to 'the said hot-air chamber, and `pipes in communication with said flues and said chamber, substantially as described.

2. The stove-body and the two plates on itsY top spaced apart to form a hot-air chamber between them, and having Walledd-raft-flues at its sides outside said chamber, anda freshf air passage across its rear from bottom to top leading into said chamber, substantially as described;

3. The body of the sto-ve havinga top with two horiZon-'talplates, the lower plate provided with a draft-flue at yeach end and narrow-er than the top plat-e tc afford an air-passage upward at li-ts rear, said body havin-g a fresh-air passage the full width across its rear and a like passage at its front between said two plates, and draft and fresh-air pipes, respectively, surmou-nt-in g said top, substantiallyas described.

4. The body of the stove comprising a combustion-chamber provided with side lines at its top and an air-heating chamber with a flue or [lues between said sid-e iiues, a walled freshd air passage across the rea-r yof the stove 'and two horizontal plates at its top, the upper -of said plates provided with openings to receive draft and hot-air pipes, respectively, and the lower plate constructed'to divide the draft an-d air passages to said pipes, the pipes set in said openings and a top surmou-nting said pipes, substantially as described.

5. The stove comprising a combustionchamber provided With side flues and an a'irl heating chamber having flues between sai-d side flues, pipes connecting with said fines and a top constructed of three several parts consisting of a plate with holes resting on said pipes, an interior wall around the hot-air dues and an exterior top plate resting on said wall and said lower plate and constructed to afford a passage from the draft-lines at the sides of the stove to the single outlet at its rear, substantially as described.

G. The body of the stove having'a combustion-chamber Within the same and'dxaft-ues T Witness my hand to the foregoing specilitberefrom at its sides, an air-heating cham# cation this 3d day of June, 18979.Vv Y ber across the top of the stovsbebweeu said draft-ues, a.fresh-air-supplypassageleading CHARLES H' HOFESTETTI ER' 5 into said ar-heatng chamber and suitable Witnesses:

outlet-openings for the hot air, substantially' K. M. WALLHAUSER, as described. H. OPPENHEIMER. 

